Mitsubishi Electric CMB-WM108V-AA Service Handbook page 134

[ VII Test Run Mode ]
3. Amount of refrigerant to be added
The amount of refrigerant that is shown in the table below is factory-charged to the outdoor units.
The amount necessary for extended pipe (field piping) is not included and must be added on site.
Outdoor unit model Amount of pre-charged refrigerant
P200YNW
P250YNW
P300YNW
P350YNW
Outdoor unit model Amount of pre-charged refrigerant
EP200YNW
EP250YNW
EP300YNW
EP350YNW
EP400YNW
EP450YNW
EP500YNW
Heat source unit model
P200YLM
P250YLM
P300YLM
P350YLM
P400YLM
P450YLM
P500YLM
(1) Calculation formula (PURY-(E)P/PQRY-P)
The amount of refrigerant to be added depends on the size and the length of field piping. (unit in m[ft])
1) When the distance between HBC and outdoor unit is longer than 30.5m:
Amount of added refrigerant (kg) = (0.21xL
2) When the distance between HBC and outdoor unit is 30.5m or shorter:
Amount of added refrigerant (kg) = (0.23xL
L :Length of Φ22.2 [7/8"] high pressure pipe (m)
1
L :Length of Φ19.05 [3/4"] high pressure pipe (m)
2
L :Length of Φ15.88 [5/8"] high pressure pip (m)
3
α :Refer to the table below.
1
HWE1708A
in the outdoor unit (kg)
5.2
5.2
5.2
8.0
in the outdoor unit (kg)
5.2
5.2
5.2
8.0
8.0
10.8
10.8
Amount of pre-charged refrigerant
in the Heat source unit (kg)
5.0
5.0
5.0
6.0
6.0
6.0
6.0
)+(0.14xL
1 2
)+(0.16xL
1 2
Outdoor unit model Amount of pre-charged refrigerant
P400YNW
P450YNW
P500YNW
Outdoor unit model Amount of pre-charged refrigerant
M200YNW
M250YNW
M300YNW
EM200YNW
EM250YNW
EM300YNW
)+(0.1xL )+α
3 1
)+(0.11xL )+α
3 1
- 125 -
in the outdoor unit (kg)
8.0
10.8
10.8
in the outdoor unit (kg)
5.2
5.2
5.2
5.2
5.2
5.2
GB